This Round-Shaped Tsurikawa is very popular among Japanese youngsters.
The Ring is in Hard PVC, The Fastener is in Steel and the Strap is Made of Nylon-Reinforced Plastic.
You can also use it as a tow hook but you can try to hold on to it while your friend drives your car, no problem.
HKS Logo on the Round Handle
X1 Round Strap Tsurikawa